(ISS) International Space Station May 17, 2021

Here is the International Space Station (ISS) with a 12″ Apertura Dobsonian Telescope. It was used with a Telvue 2″ Big Barlow extended out 2″ to give a 2.75x Magnification. The camera was a ZWO ASI 174mm with a “Red UV/IR Cut” filter.

Exposure time was .285ms with a gain of 345.

The ISS was a Mag -4.5 with a max height of 73 degrees.

Below is all of the 2000 frames captured stacked together to show this short video of it.